Thorne attended Wheaton Central High School in Wheaton, Illinois where he played under his father, head coach John Thorne. He set the state record for career touchdown passes with 57.[4] He started as a sophomore and threw for over 1,000 yards.[5] His senior season, he led the team to a 5A state semifinal appearance and was named all-state.[6][7] He played in the Illinois High School All-Star game and was named MVP.[4] He also played baseball and was an all-conference selection in basketball.[8][9]
Thorne then enrolled at Eastern Illinois University and was a four year starter. He was selected all-Gateway Conference honorable mention after his junior season in 1992 after throwing for 1944 yards and 10 touchdowns. His senior season he earned 2nd team all-conference honors. He holds the school record for most interceptions thrown in a game with seven in a 7-49 loss to McNeese State. He ranks in the top ten in school history in season pass efficiency, touchdown passes, and interceptions. Thorne ranks fourth in career total offense, passing yardage, passing attempts, and completions categories behind Jimmy Garoppolo, Sean Payton, and Tony Romo.[10]
Coaching career
Assistant coaching
After graduation, Thorne became an assistant coach at his former high school under his father coaching during three state championship seasons. Thorne became offensive coordinator for Division III North Central College in 2002, the same year his father became head coach. He was a finalist for coordinator of the year in 2013 after his offense average over 45 points per game on route to a National Championship appearance.[6][11]
North Central
After his father's retirement, Thorne was named head coach for the 2015 season. After the 2016 season, Thorne was named College Conference of Illinois & Wisconsin coach of the year and AFCA Region Coach of the Year.[6] He was named D3football.com Coach of the Year after his 2019 National Championship.[6] Thorne coached the 2019 Gagliardi Trophy winner Broc Rutter.[12]
Western Michigan
On February 1, 2022, Thorne was named the offensive coordinator for Western Michigan under head coach Tim Lester.[12] Under Thorne, the offense averaged 301.9 yards per game during the 2022 season, last in the MAC. Western Michigan finished the year 5-7, including 4-4 in conference, good for third place in the MAC West. Thorne, along with most of the coaching staff, was let go when Lester was fired on November 28.[13]